نتایج جستجو برای: conveyer belt

تعداد نتایج: 17670  

2005
ARIJIT K. SENGUPTA Ryan J. Brown

The systemic effects of wearing an industrial back belt for a repetitive asymmetric lifting task between knee and waist height have been investigated. Belt wearing significantly reduced the average heart rate by 5.3 beats per minute, constituting 21% reduction of the metabolic cost due to the exercise. Back belt significantly reduced the average systolic blood pressures by 9 mm of Hg. For manua...

Mohammad Ali Jafari, Nasser Gholaman

Using energy absorption systems in the structures with malfunctioning components is of paramount importance. By absorbing the seismic energy, these systems help the components of the structure to remain resilient during earthquake. In the present study, viscous dampers were applied in order to enhance the reactions of tall building with belt truss. To assess the response of a structure un...

Journal: :American journal of obstetrics and gynecology 1992
A Vleeming H M Buyruk R Stoeckart S Karamursel C J Snijders

OBJECTIVES The objectives of this study were to investigate the influence of pelvic belts on the stability of the pelvis and to discuss the treatment of peripartum pelvic instability. STUDY DESIGN In six human pelvis-spine preparations, sagittal rotation in the sacroiliac joints was induced by bidirectional forces directed at the acetabula. Weight-bearing was mimicked by the application of a ...

2007

Many problems which occur with belt conveyors can be attributed to system dynamics and the associated variations in belt tension. Material spillage, belt and splice failure, belt lift-off in vertical curves and poor tracking are a few examples of situations where knowledge of the dynamic tensions would be of benefit in eliminating a problem. The difficulty is that measuring dynamic tension at a...

2011
Yonghong Li Jiangping Kong

The paper studies the breathing patterns for four types of Chinese metrical poems, namely, fivecharacter quatrain, five-character octave, sevencharacter quatrain and seven-character octave. A breathing belt was tied to the chest and the respiratory signal was acquired by EMG. Respiratory parameters were defined regarding the dynamical properties of the signal, and were automatically extracted b...

2004
Sergei Popov Michal Ostrowski Vladimir Ptuskin

I discuss young close-by compact objects, recent supernovae in the solar neighbourhood, and point to their connection with cosmic ray studies. Especially the role of the Gould Belt is underlined.

Journal: :The Journal of trauma 1998
M B Statter T Vargish

4) The entire class of seat belt-related flexion-distraction injuries to the spine are commonly referred to as ‘Chance-type’ fractures. These fractures are caused by hyperflexion around a lap belt, with the belt acting as a fulcrum. This mechanism of hyperflexion and distraction would also explain the frequent association of intraabdominal injuries as viscera are crushed between the lap belt an...

Journal: :international journal of nano dimension 0
r. ahmadi department of chemistry, shahre-rey branch, islamic azad university, tehran, iran. t. boroushaki student of master, islamic azad university, shahre-rey, tehran, iran. m. ezzati student of master, islamic azad university, shahre-rey, tehran, iran.

for analyzing of compositions molecular orbitals in this article in order to combination only- xylometazolin-c7 x2 (xy) and c60– xylometozolin-c65-x2 (fxy), first got energies of highest occupied molecular orbital (homo) and lowest unoccupied molecular orbital (lumo) by using nbo analyze in gaussian 03 software. then, occupancy parameter, gap of energy, and δnmax were calculated   by support of...

Journal: :Stapp car crash journal 2009
Jason Forman Francisco Lopez-Valdes David Lessley Matthew Kindig Richard Kent Stephen Ridella Ola Bostrom

Rear seat adult occupant protection is receiving increased attention from the automotive safety community. Recent anthropomorphic test device (ATD) studies have suggested that it may be possible to improve kinematics and reduce injuries to rear seat occupants in frontal collisions by incorporating shoulder-belt force-limiting and pretensioning (FL+PT) technologies into rear seat 3-point belt re...

Journal: :Academic emergency medicine : official journal of the Society for Academic Emergency Medicine 2014
Dominic A Borgialli Angela M Ellison Peter Ehrlich Bema Bonsu Jay Menaker David H Wisner Shireen Atabaki Cody S Olsen Peter E Sokolove Kathy Lillis Nathan Kuppermann James F Holmes

OBJECTIVES The objective was to determine the association between the abdominal seat belt sign and intra-abdominal injuries (IAIs) in children presenting to emergency departments with blunt torso trauma after motor vehicle collisions (MVCs). METHODS This was a planned subgroup analysis of prospective data from a multicenter cohort study of children with blunt torso trauma after MVCs. Patient ...

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